Electrical water heater



Sept. l5, 1925.

. A. M. WERNER ELECTRI CAL WATER HEATER Filed Aug. 2l, 1922 11V VEN TOR.

Mix/@Mer BY WMMM( Zw@ ATTORNEYS.

Patented sept. 15, 1925.

y UNITED STATES 1,553,491 PATENT OFFICE.

ARTHUR MAX WERNER, 0F LO'S ANGELES, CALIFORNIA, ASSIGNOR TO WERNER ELEC-Y TRIO HEATER COMPANY, .A CORPORATION 0F DELAWARE.

ELECTRICAL 'WATER HEATER.

Application led August 21, 1922.` Serial No. 583,186.

To all whom t may concern.'

Be it known that I, ARTHUR MAX YVER- NER, a citizen of the UnitedStates, residing at Los Angeles, 'in the county of Los Angeles, State ofCalifornia, have invented new and usefullmprovements in Electrical WaterHeaters, of which the following isv a specification..`

lIhis invention relates to an electrical water heater adapted forwithdrawal of heated water at frequent intervals, which will act as aninstantaneous heater, and will also store comparatively large quantitiesof hot water ready for withdrawal.

It is the primary object of this invention to provide a heater of thecharacter described which will supply hot water from a storage chamberuntil the storage hot water is exhausted, then will supply water fromthe instantaneous chamber;.and, when with-Y drawal is stopped theinstantanous chamber will supply hot water to the storage chamber. Theinvention consists in a novel instantaneous heater so connected in astorage tank as to provide a circulation of water to accomplish theresults above set forth.

These objects, together with other objects and correspondingaccomplishments, are obtained by means of the embodiment of my inventionillustrated in the accompanying drawing in which: Fig. 1 is a verticalsection through the heater; Fig. 2 is an enlarged section as seen on theline 2-2 of of Fig. 1,' but having adjustable electrodes; and Fig. 3 isa perspective view of the adjustable electrodes.

Referring more particularly to the draw-v ing, the storage tank forholding the heated water is indicated by 4. It is provided with a bottom5, having the heater casing Geprcferably .formed integral therewithforming an instantaneous heating chamber. Extending through the bottomis a cold water'inlet 7. The instantaneous chamber is cylindrical inform and has an outlet 8 at the bottom thereof. The top is 'formed witha fourway connection 9, one leg thereof communicatingwith the top of theheatingr chamber; the top leg being threaded to receive the pipe 10, andthe other leg communicating with the storage tank.

A head 11 for the heating chamber is hollow and has bolts securing it tothe bottom 5. A suitable gasket 24 may be inserted between the head andbottom to form a water tight joint. The head is iilled with vulcanizedrubber 12, in which the electrical terminals may be embedded to forminsulation.

Rectangular electrodes of carbon or other suitable material indicated by14 are spaced apart so that water may fill the space between theconductors and serve as a conductor and resistance `for the flow of theelectric current. Terminals are connected to a source of electricalenergy through the switch l5.' If it is desired to make the distancebetween the electrodes adjustable so as to compensate for the differentkinds of water and provide for eticient current consumption, then thestructure shown 1n Figs. 2 and 3 may be employed. Each electrode 14 hasa foot 16 secured thereto and between the toes thereof is a screw 17 foradjustably fixing the electrode upon the terminal 18. 1t is obvious thatby this structure the gap between the electrodes may be varied.

Secured to the topy of the tank and in communication with the pipe 10,is a fitting 19 having three ways. Connected to one of the ways is apipe 20 which leads to the house system, and, for convenience inillustration a single faucet 21 is shown attached tn the pipe 20. Theother way is connected' by va section of pipe 22 to lthe outlet 23communicating with the top of the tank.

When the switch 15 is closed, electricity flows through a terminal intoone electrode, through thewater into the other electrode, and throughthe other terminal to the other side of the line. Completing the circuitpermits a flow of electricity through the water which is heated due toits resistance. In order` to prevent current passing between theelectrodes and casing 6, which is preferably of metal, the latter may beenamled on the inside. lAssume that no water is being drawnfrom thesystem. .As soon as the water is heated, it rises to the topof the tankand is replaced by cooler water which circulates downwardly. Thecirculallt) If the tank does not contain ,a suiicient amount of storedhot water, closing of the switch 15 and7 opening of the faucet 21 willcause the action to be that of an instantaneous heater. Cold water flowsinto the tank through inlet 7, into the heater chamber through inlet 8,between the electrodes, through the pipe 10' to the pipe 20. Thus, wateris dra-Wn around the heating elements0 When the tank is full of hotWater and faucet 21 is opened, there Will be a Withdrawal of Water fromthe heater chamber as Well as the storage spaces What I claim is:

1. A device of the class described comprising a storage tank.having ahot water outlet at the top communioatin With a house system and a cold-Water in et at the bottom, a heater casing Within said tank, an outletat the top of said heater casing, a tube directly connecting, saidcasing with said house system, said tube communicating directly with theupper part` of said tank, said casing being in open communication withsaid tank at the topI and bottom to permit circulation of Water, and aheater within said casing.

2., A device of the class described cornprising a storage tank having ahot water outlet at the top and a cold Water inlet at the bottom, aheater casing Within said tank having an outlet at ythe topcommunicating with said tank, and a cold Water inlet at the bottomcommunicating with said tank, a junction fitting connected to the housesystem, an outlet pipe connecting said heater casing and said iitting,an outlet pipe connecting the top ci said tank and Said fitting, and aheater Within said casinga In Witness that. claim the foregoing I havehereunto subscribed my naine this 12th day of August, 1922.

ARTHUR MAX WERNER.

